Tom qab kuaj xyuas cov kabmob kev taw qhia hauv lub tshuab dov thiab kaw, xaiv ib qho tshwj xeeb yob bearing txij nkawm daim ntawv teev cov kabmob lub rooj zaum, yob tus lej, tus lej xov tooj, bearing orientation ntawm lub dov zeb, bearing cheeb tsam ntawm lub nplhaib sab nrauv, tonnage ntawm cov khoom dov, bea...
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